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No. 620,089. Patented Feb. 2|, I899. W. V. THBELFALL.

REVOLVING FLAT CARDING ENGINE.

(Application filed Nov. 16, 1898.)

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'No. 620,089. Patented Fab. 2|, I899.

NEVOLVING FLAT GARDING ENGINE. [Application filed N' ov. 16, 1896.)

(No Model.) 2 Sheets$heet 2.

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UNITED: STATES PATENT OFFICE.

XVILLIAM V. THRELFALL, OF NEWTON, MASSACHUSETTS, ASSIGNOR TO THE PETTEE MACHINE WORKS, OF SAME PLACE.

REVOLVING-FLAT CARDING- ENGINE.

SPECIFICATION forming part of Letters Patent No. 620,089, dated February 21, 1899.

- Application filed November 16, 1896- Serial No. 612,198. (No model.)

To all whom i may concern/f Fig. 4 is a viewin-vertical section of the screen Beit known thatLWILLIAM V.THRELFALL, upon the dotted line 4 4 of Fig. 3. a citizen of the United States, residing at A is the licker-in B, the main cylinder; 0, Newton, in the county of Middlesex and State the main -cy1inder screen; E E, the mote- 5 of Massachusetts, have invented a new and knives. The licker-in screen has two secuseful Improvement in Revolving-Flat (Jardtionsnam ely, the main sectiond and the toe ing-Engines, of which the following is a full, or rear section (1'. The licker-in screen D is clear, and exact description, reference being represented as attached to the flanges c of the had to the accompanying drawings, forming main-cylinder screen in a manner to permit IO a part of this specification, in explaining its of the adjustment of its upper surface in renature. spect to the circumference of the licker-in The invention relates especially to a lickerand beingattached to the main-cylinderscreen in screen having an outer end or nose, which is adjustable with it. The devices for securis so shaped or arranged in relation tothe ing it to the main-cylinder screen and for ada 5 remainder of the screen and to the licker-in j usting it thereon are fully described in the as to provide an entrance or passage between said application, and the devices for adjustits upper surface or bars and the licker-in, ing the main-cylinder screen and thereby the which preferably gradually decreases in licker-in screen are also fully set forth in height, and also means whereby the said nose said application. The licker-in screen of o is adjustable upon the remainder of the screen said application had its entire upper surface both horizontally and in relation-to the lickershaped or curved throughout to the curve in, whereby this space or passage is varied in of the licker-in roll, and there was no proheight and length. The nose may be supvision for establishing a passage or space beported by the main section of the licker-in tween its rear end and the licker-in gradually decreasing in height. To enable this pasupon an independent support upon which it sage or space to be formed, I have made the may be adjustable. I have shown the firstscreen inthe two parts (1 d, as above specinamed construction. The main section of fied, and have attached the part d to the part the linker-in screen may be adjustable with d by means which enable it to be adjusted thereon to vary the position of its upper sur- 8a as described in the application of Charles face in relation to the licker-in. The section, Mills and Loren W. Penney, No. 576,396, filed d comprises the side plates (1 the central January 22, 1896, or it may be adjustable plate (i the upper curved'plate d, which is upon an independent support. I have repattached to the end plates and to the central resented in the drawings the first-named conplate, and the ties 01 which connect the end struction and consider 1t the more desirable and central plates and strengthen the conone, because it provides means whereby the struction. The section d of the licker-in ticker-in screen and the nose of the licker-in screen has the end plates d and the central screen may be simultaneously adjusted with plate 01 The end plates are connected by the the main-cylinder screen and by the adj usthollow bars (i forming a grating. The end mg devlces which are used in adjusting the plates 01 have backward extensions provided main-cylinder screen. with recesses or slots (1 and they are formed In the drawings, Figure 1 is a view in verto lap upon the outer sides of the end plates ticallongitudinal section and in elevation of d of the screen-section d. The central plate enough of a revolving-fiat carding-engine to d has the backward extension d, which laps illustrate the invention. Fig. 2 is a view in upon the central plate 01 and it has the slot vertical section uponthe dotted line 2 2 of or recess (Z The devices attaching these Fig. 1. Fig. 3 is aview in perspective of the backward extensions of the end plates and hcker-m screen, representing also in dotted central plate of the nose to the correspondouthne a portion of the main-cylinder screen. ing plates of the main section are of a char- 10o .beginning of the screen, which may be of any desired height and which gradually decreases in height as it extends inward. These adjustable attaching devices preferably comprise the pivots F and the adjustable locks F. The pivots F form the centers upon which the nose-section is adapted to be turned to vary the position of its surface in relation to the licker-in.,. These pivots permit the horizontal movement'of the nose in relation to the part (1 by means of the slots d". The locks F are simply clamping bolts upon which the plates (1 are moved when the bolts are released and which bolts when tightened serve to lock the nose-firmly to the section d. The pivots preferably each comprise the sleeve f, which extends through a hole in the end plate (1. and the slot or recess 61* of the end plate d, and which has a flange f, which bears against the inner surface of the plate (1 A bolt f having the head f extends through the hole in the sleeve and receives a locking-nutf and serves, with the nut, to hold the sleeve in place.

The central plate (1 is adj ustably attached to the central plate d by the Holt 1?, the horizontal slot (1" and a vertical slot in the plate (1 providing means for adjusting the bolt. I By the adjustment thus obtained by the nose of the screen a passage or space G is established between the upper surface of the nose of the screen and the licker-in, which preferably gradually decreases in height from its opening as it extends inward and which may be varied in height by the adjustment of the nose and in length by the horizontal adjustment of the nose, and this without interfering with the adjustment of the main section d of the screen to'the curve of the licker-in.

While I prefer toattach the licker-in screen to the main-cylinder screen and to adjust them simultaneously, I would 'say that the licker-in screen when provided with the adustable nose may be adjustably secured to any suitable support other than the maincylinder screen, and also that the nose d of the licker-in screen may be carried by and adjusted upon any other support than the main section (1 without departing from the spirit of the invention. The outermost bar of the nose is represented as having a recess h in its under side, which covers the upper edge h of the plate H, and thereby prevents dust and fly from readily lodging or accumulating thereon.

The advantages which arise from providing the nose with the adjustment specified and the formation of the passage G consistin the doing away entirely or to a very large extent with the making of fly, fly being waste cotton, which it is desirable not only to save,

but to prevent making, because it not only is waste when it escapes, but because it also works into the lap anddeteriorates it.

It will be understood that the upper curved plate (1 of the licker-in screen is imperforate and that it forms a downward extension from the imperforate section m, extending from the knife-edge ac downward, forming a part of the licker-in screen, but attached to the maincylinder screen. It will also be seen that the part (1 ofthe licker-in screen, of which the plate (1 is a portion, is attached to'the maincylinder screen and is adjustable thereon in a manner to permit the plate cl to be set in any required position in respect to the lickerin roll. Ordinarily the main-cylinder screen and the sections a: and d of the licker-in screen are set throughout their length as closely as possible to the main cylinder and to the licker-in, and the adjustment of the part at of the licker-in screen necessary for accomplishing this setting of this section of the screen or any'other setting is usually performed in the first setting up of the machine, and this relation of the said section d to the main-cylinder screen is not as a rule thereafter changed. 1

The nose-section of licker-in screen or the part lettered d is adjustable horizontally in relation to the section at of thelicker-in screen and licker-in and also upon a vertical arc, of which the locking device F is the center. This adjustment is an adjustment which is made at the original setting up of the machine and at any othertime desired and is made independent of the adjustment of .the mote-knives.-

In the operation of the carding-machine it will be understood that the lap is fed to the licker-in and by it opened and cleansed and fed to the main carding-cylinder and that for this operation it is desirable that there be the lap-feeding rolls or devices, the motethis has been due quite largely to the fact that in order to adjust the rear end of the nose of the licker-in screen in relation to the licker-in it was also necessary to move the section d above or beyond the nose in respect to the licker-in, and this has formed a passage between the section d and the lickerin which has permitted a back draft from the main-cylinder screen to be established, which has caused the short staple forming the fly to be blown backward and downward into the compartment below the screen and has resulted in considerable waste, which it has been the custom to separate by a divisionplate from the Worthless waste from the moteknives. By making the nose of the licker-in screen'independently adjustable it becomes possible to set the section (1 closely to the licker-in screen throughout its length and at the point :6 and when so set no back current from the main cylinder prevails and there is absolutely no escape of fly.

It so happens on account of the difierentnatures of the lap in' respect to the length of nose-section is necessary ment of the mote-knives, and it is desirable that these adjustments be independent of each other, some grades orqualities of cotton requiring that the nose be set farther from the licker-in than others. The adjustment of the nose away from the licker-in also widens the space 00 between the end m of the section (1 and the bar cl next it, and this is also advantageous as it permits the escape of as Well as adjusthe larger particles of dirt and waste which are generally foundin the cotton, which requires such an adjustment of the nose.

It will be understood that although as a rule it is desirable that the fly be not formed as waste and that the plate d be set as closely as possible to the licker-in, in some instances with certain staples it is desirable there should be a winnowing or removal of the very short staple from the lap, and when this result is desired the plate cl may be so set in relation to the licker-in as to provide a narrow passage between the section 00 and the end 00 which gradually increases in height to the end m and which permits of enough backilow or current of air from the maincylinder screen as to take the said short staple and deposit it into the compartment be low the screen; but, as above stated, this is an exceptional use, and it is mentioned for the purpose of showing the range of the invention but for most uses it is desirable that the plate d be set as closely to the licker-in as possible for the reasons above stated.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States- 1. The combination in a revolving-flat carding-engiue of the main cylinder, the main-cylinder screen, the licker-in roll, the licker-in screen having a main or principal unperforated section (Z and an auxiliary section or nose d provided with escape-openings, the said main section being attached to the maincylinder screen, means borne by the maincylinder screen for adjusting the licker-in screen as a whole in relation thereto, and with respect to the licker-in roll, and means carried by the main section of the lickerin screen for the independent adjustment of the said section or nose dwith respect to it and to the licker-in set forth.

2. The licker-in screen having a cross-bar (i provided with a longitudinal recess h in its roll, as and for the purposes justment of the said licker-in roll, as and under surface in line with and covering the top of the plate H,- in combination with the said plate H, as and for the purposes set forth.

3. The combination of the main section cl of the licker-in screen comprising the end plates (1 the curved plate (1 the braces d and central plate 01 with the independent nose or rear section (1 comprising the end plates d, the central plate at, the ribs or bars d the said end and central plates having backward extensions which lap upon the corresponding plates of the main section and devices connecting said overlapping sections with thesaid corresponding plates of the main section, as and for the purposes described.

4. In a carding-engine the combination of the main cylinder, an adjustable main-cylinder screen, the licker-in roll, the licker-in screen having a main or principal unperfo-' rated section and a supplemental section or nose provided with escape-openings, the said licker-in screen being attached to the main-cylinder screen to be adjustable therewith,means borne by the main-cylinder screen for independently adjusting the licker in screen as a whole in relation to it and with respect to the licker-in roll and additional means carried -by the main section of the licker-in ,screenfor the independent adjustment of the said section or nose with 're- 'spect to it, the main-cylinder screen and the licker-in roll, as and for the purposes set forth.

5. In a revolving-flat carding-engine the combination of the main cylinder, an adj ustable main-cylinder screen, the 'licker-in roll, the licker-in screen comprising a wide, unperforated section d and a relatively narrow supplemental section or nose 11 provided with openings, the said main and auxiliary sections being attached to the main-cylinder screen tobe adjustable therewith, means borne by the main-cylinder screen for adjusting both sections of the licker-in screen as a whole in relation thereto and with respect to the liekerin roll, and means for the independent adsupplemental section or to the main unperforated cylinder screen and the for the purposes set forth.

6. The combination in a carding-engine of the licker-in roll, the adjustable main section d of the lieker-in screen, the independentlyadjustable end (1' of the licker-in screen, the mote-knives E, E and the vertical plate H, as and for the purposes set forth.

7. The combination in a revolving-flat carding-engine of the main cylinder, the main-cylinder screen, the licker-in roll, the licker-in screen consisting of a main unperforated section d and a relatively narrow supplemental section or nose (1 provided with openings, the said main section beingattached to the maincylinder screen and extending to or very nearly to a perpendicular line drawn through the center of the licker-in roll, means borne by the main cylinder screen for adjusting nose (1 with respect section, the main both sections of the licker-in screen as a whole in relation thereto and with respect to the licker-in roll and means for the independent adjustment of the said section or nose (1 with respect to it and the licker-in roll.

8. The combination in a carding-engine of the main section of the licker-in screen (1 and the nose d"having end plates d shaped substantially as shown and cross-bars d, the end plates having backward extensions which lap upon the end plates of the main section and which are provided with the recesses d and connections F, F, as and for the purposes set forth.

9. In a revolving-flat carding-engine, the

combination of the main cylinder, the adj ustable main-cylinder screen, the lickerdn roll, the licker-in screen "having a main unperforated section (1 and a relatively narrow supplemental section or nose 01' provided with openings, the said main section being attached to the main-cylinder screen, means borne by the main-cylinder screen for ad justing the licker-in screen as a whole in relation thereto and with respect to the licker-in roll,

rated section (1 extending to or nearly to a eopeo perpendicular linedrawn through the licker-in roll and adjustable as a whole with re-- with respect to the main section of the licker-in screen and the licker-in roll, all as and for the purposes set forth.

11. The combination in'a carding-engine of the section (I of the lioker-in screen havin the curved imperforate plate (1, the section of the licker-in screen and means for varying the width of the space x between the end of the pfiliate d and the first bar d of the said section 12. In a carding-engine the licker-in roll,independently-adj ustable mote knife or knives, the licker-in screen having the imperforate plates an, d and the nose (1', the platew being attached to the frame of the main-c linder screen, the curved imperforate plate a being independently adjustable in relation to the licker-in and the plate at, and the section (1' being adjustable independently of the plate (i andthe mote knife or knives, as and for the purposes set forth.

WILLIAM V. THRELFALL.

In presence of.

J. M. DOLAN, F. F. RAYMOND, 2d. 

